I've got a game where I need a squiffy logical OR (I could do it easy in JS but this is deep in squiffy territory). A logical AND would look like this...
{@a}
{@b}
{if a:{if b: AND}}
Any ideas?
Hello, Bluevoss!
This works in the ScratchPad thing in the Squiffy documentation, but that doesn't always mean it works in the latest version of Squiffy.
{@a}
{@b}
{if a:{if b: AND}}
{if c:AND}{else:BUT}
I found the else code here:
https://github.com/textadventures/squiffy/blob/1ea68ad48a51980cc22ab4b5a6758ced700eaff1/examples/sectiontrack/sectiontrack.squiffy#L14
For a logical or, I think you need a temporary value
{@not temporary_value}
{if a:{@temporary_value}}
{if b:{@temporary_value}}
{if temporary_value:Woo! A or B is true!}
Or, harder to read but more efficient:
{if a:{@temp}}{else:{if b:{@temp}}{else:{@not temp}}}
{if temp:This is the result of your logical or}
MR, I liked your solution but I've got a string of these to do and I don't think temp is resetting. For this, I might try something like this...
{@a}
{@b}
{@not temp}{if a:{@temp}}{if b:{@temp}}
{if temp: Local OR true}
Oh . . .
I misunderstood the question. (I should have known Bluevoss already knows how to work else in Squiffy.)
And my second one had a silly typo.
I think what you have there is the same as my first one with the line breaks removed; unless I made another mistake.
Richard - you'd think I knew, but you can't imagine the number of times I've still goofed up simple commands. My favorite is the five hours I recently spend fussing with squiffy code because there was a space in a command. I looked straight at it for hours.
Mrangel - As mentioned above, yeah, we all make them. And it was only now that I realize what "{if b:{@temp}}" was doing. And now (today) I see it - you were setting temp in case it wasn't set (which I moved to the front of the operation, same difference).
But thanks all you guys for your responses. You both put me on the right track.
(And it's remarkable that a logical OR was far more difficult then a natural logical AND. And that I've never had need for it until now)
Well, if you see a new programmer who doesn't know about logical operations, they often end up with stuff like:
if (a) {
if (b) {
Wow! a AND b!
}
}
if (a) {
Wow! a OR b
}
elseif (b) {
Wow! a OR b
}
Which is technically faster; but involves typing out your code twice.
There should be an easier way - I could do it in JS very easy but I wanted to keep it all in one code base. But since I had something like twenty lines of OR checks, the two line option we co-developed was much better.
Of course, while I say this is critical, I'm mindful that it's never come up (across something like a half-dozen written games) until now.
To be honest, I'm surprised that simple logic isn't supported by default. It would be like a half dozen lines to implement; a dozen if you want a simple push-down lexer so you can do grouping like (a and b) or (c and d)
Damn, I woke up today and there was the answer, clear as day!
{@a}
{@b}
{if a:{if b: AND}}
{if not a:{if not b:}}
{else: OR}
Simple!